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<?php
/** @constant integer VFS_FILE File value for vfs_type column. */
define('VFS_FILE', 1);
/** @constant integer VFS_FOLDER Folder value for vfs_type column. */
define('VFS_FOLDER', 2);
/**
* VFS implementation for PHP's PEAR database abstraction layer.
*
* <pre>
* Required values for $params:
* 'phptype' The database type (ie. 'pgsql', 'mysql, etc.).
* 'hostspec' The hostname of the database server.
* 'protocol' The communication protocol ('tcp', 'unix', etc.).
* 'username' The username with which to connect to the database.
* 'password' The password associated with 'username'.
* 'database' The name of the database.
*
* Optional values:
* 'table' The name of the vfs table in 'database'. Defaults to
* 'horde_vfs'.
*
* Required by some database implementations:
* 'options' Additional options to pass to the database.
* 'tty' The TTY on which to connect to the database.
* 'port' The port on which to connect to the database.
* </pre>
*
* The table structure for the VFS can be found in
* horde/scripts/db/vfs.sql.
*
* Database specific notes:
*
* MSSQL:
* <pre>
* - The vfs_data field must be of type IMAGE.
* - You need the following php.ini settings:
* ; Valid range 0 - 2147483647. Default = 4096.
* mssql.textlimit = 0 ; zero to pass through
*
* ; Valid range 0 - 2147483647. Default = 4096.
* mssql.textsize = 0 ; zero to pass through
* </pre>
*
* $Horde: framework/VFS/VFS/sql.php,v 1.85.4.3 2005/02/17 22:09:10 jan Exp $
*
* Copyright 2002-2005 Chuck Hagenbuch <chuck@horde.org>
*
* See the enclosed file COPYING for license information (LGPL). If you
* did not receive this file, see http://www.fsf.org/copyleft/lgpl.html.
*
* @author Chuck Hagenbuch <chuck@horde.org>
* @version $Revision: 1.85.4.3 $
* @since Horde 2.2
* @package VFS
*/
class VFS_sql extends VFS {
/**
* Handle for the current database connection.
*
* @var object DB $_db
*/
var $_db = false;
/**
* Retrieve a file from the VFS.
*
* @access public
*
* @param string $path The pathname to the file.
* @param string $name The filename to retrieve.
*
* @return string The file data.
*/
function read($path, $name)
{
$conn = $this->_connect();
if (is_a($conn, 'PEAR_Error')) {
return $conn;
}
return $this->_readBlob($this->_params['table'], 'vfs_data',
array('vfs_path' => $path,
'vfs_name' => $name));
}
/**
* Stores a file in the VFS.
*
* @access public
*
* @param string $path The path to store the file in.
* @param string $name The filename to use.
* @param string $tmpFile The temporary file containing the data to
* be stored.
* @param boolean $autocreate Automatically create directories?
*
* @return mixed True on success or a PEAR_Error object on failure.
*/
function write($path, $name, $tmpFile, $autocreate = false)
{
$size = filesize($tmpFile);
if ($size === 0) {
$data = '';
} else {
$dataFP = @fopen($tmpFile, 'rb');
if (!$dataFP) {
return PEAR::raiseError(sprintf(_("The temporary file \"%s\" does not exist."), $tmpFile));
}
$data = @fread($dataFP, $size);
@fclose($dataFP);
}
return $this->writeData($path, $name, $data, $autocreate);
}
/**
* Store a file in the VFS from raw data.
*
* @access public
*
* @param string $path The path to store the file in.
* @param string $name The filename to use.
* @param string $data The file data.
* @param optional boolean $autocreate Automatically create directories?
*
* @return mixed True on success or a PEAR_Error object on failure.
*/
function writeData($path, $name, $data, $autocreate = false)
{
$conn = $this->_connect();
if (is_a($conn, 'PEAR_Error')) {
return $conn;
}
/* Check to see if the data already exists. */
$sql = sprintf('SELECT vfs_id FROM %s WHERE vfs_path %s AND vfs_name = %s',
$this->_params['table'],
(empty($path) && $this->_db->dbsyntax == 'oci8') ? ' IS NULL' : ' = ' . $this->_db->quote($path),
$this->_db->quote($name));
$this->log($sql, PEAR_LOG_DEBUG);
$id = $this->_db->getOne($sql);
if (is_a($id, 'PEAR_Error')) {
$this->log($id, PEAR_LOG_ERR);
return $id;
}
if (!is_null($id)) {
return $this->_updateBlob($this->_params['table'], 'vfs_data',
$data, array('vfs_id' => $id),
array('vfs_modified' => time()));
} else {
/* Check to see if the folder already exists. */
$dirs = explode('/', $path);
$path_name = array_pop($dirs);
$parent = implode('/', $dirs);
if (!$this->isFolder($parent, $path_name)) {
if (!$autocreate) {
return PEAR::raiseError(sprintf(_("Folder %s does not exist"), $path), 'horde.error');
} else {
$result = $this->autocreatePath($path);
if (is_a($result, 'PEAR_Error')) {
return $result;
}
}
}
$id = $this->_db->nextId($this->_params['table']);
if (is_a($id, 'PEAR_Error')) {
$this->log($id, PEAR_LOG_ERR);
return $id;
}
return $this->_insertBlob($this->_params['table'], 'vfs_data',
$data, array('vfs_id' => $id,
'vfs_type' => VFS_FILE,
'vfs_path' => $path,
'vfs_name' => $name,
'vfs_modified' => time(),
'vfs_owner' => $this->_params['user']));
}
}
/**
* Delete a file from the VFS.
*
* @access public
*
* @param string $path The path to store the file in.
* @param string $name The filename to use.
*
* @return mixed True on success or a PEAR_Error object on failure.
*/
function deleteFile($path, $name)
{
$conn = $this->_connect();
if (is_a($conn, 'PEAR_Error')) {
return $conn;
}
$sql = sprintf('DELETE FROM %s WHERE vfs_type = %s AND vfs_path %s AND vfs_name = %s',
$this->_params['table'],
$this->_db->quote(VFS_FILE),
(empty($path) && $this->_db->dbsyntax == 'oci8') ? ' IS NULL' : ' = ' . $this->_db->quote($path),
$this->_db->quote($name));
$this->log($sql, PEAR_LOG_DEBUG);
$result = $this->_db->query($sql);
if ($this->_db->affectedRows() == 0) {
return PEAR::raiseError(_("Unable to delete VFS file."));
}
return $result;
}
/**
* Rename a file or folder in the VFS.
*
* @access public
*
* @param string $oldpath The old path to the file.
* @param string $oldname The old filename.
* @param string $newpath The new path of the file.
* @param string $newname The new filename.
*
* @return mixed True on success or a PEAR_Error object on failure.
*/
function rename($oldpath, $oldname, $newpath, $newname)
{
$conn = $this->_connect();
if (is_a($conn, 'PEAR_Error')) {
return $conn;
}
$sql = sprintf('UPDATE %s SET vfs_path = %s, vfs_name = %s, vfs_modified = %s WHERE vfs_path = %s AND vfs_name = %s',
$this->_params['table'],
$this->_db->quote($newpath),
$this->_db->quote($newname),
$this->_db->quote(time()),
$this->_db->quote($oldpath),
$this->_db->quote($oldname));
$this->log($sql, PEAR_LOG_DEBUG);
$result = $this->_db->query($sql);
if ($this->_db->affectedRows() == 0) {
return PEAR::raiseError(_("Unable to rename VFS file."));
}
$rename = $this->_recursiveRename($oldpath, $oldname, $newpath, $newname);
if (is_a($rename, 'PEAR_Error')) {
$this->log($rename, PEAR_LOG_ERR);
return PEAR::raiseError(sprintf(_("Unable to rename VFS directory: %s."), $rename->getMessage()));
}
return $result;
}
/**
* Creates a folder on the VFS.
*
* @access public
*
* @param string $path Holds the path of directory to create folder.
* @param string $name Holds the name of the new folder.
*
* @return mixed True on success or a PEAR_Error object on failure.
*/
function createFolder($path, $name)
{
$conn = $this->_connect();
if (is_a($conn, 'PEAR_Error')) {
return $conn;
}
$id = $this->_db->nextId($this->_params['table']);
if (is_a($id, 'PEAR_Error')) {
$this->log($id, PEAR_LOG_ERR);
return $id;
}
$sql = sprintf('INSERT INTO %s (vfs_id, vfs_type, vfs_path, vfs_name, vfs_modified, vfs_owner) VALUES (%s, %s, %s, %s, %s, %s)',
$this->_params['table'],
$this->_db->quote($id),
$this->_db->quote(VFS_FOLDER),
$this->_db->quote($path),
$this->_db->quote($name),
$this->_db->quote(time()),
$this->_db->quote($this->_params['user']));
$this->log($sql, PEAR_LOG_DEBUG);
return $this->_db->query($sql);
}
/**
* Delete a folder from the VFS.
*
* @access public
*
* @param string $path The path of the folder.
* @param string $name The folder name to use.
* @param optional boolean $recursive Force a recursive delete?
*
* @return mixed True on success or a PEAR_Error object on failure.
*/
function deleteFolder($path, $name, $recursive = false)
{
$conn = $this->_connect();
if (is_a($conn, 'PEAR_Error')) {
return $conn;
}
$folderPath = $this->_getNativePath($path, $name);
/* Check if not recursive and fail if directory not empty */
if (!$recursive) {
$folderList = $this->listFolder($folderPath, null, true);
if (is_a($folderList, 'PEAR_Error')) {
$this->log($folderList, PEAR_LOG_ERR);
return $folderList;
} elseif (!empty($folderList)) {
return PEAR::raiseError(sprintf(_("Unable to delete %s, the directory is not empty"),
$path . '/' . $name));
}
}
/* First delete everything below the folder, so if error we
* get no orphans */
$sql = sprintf('DELETE FROM %s WHERE vfs_path %s',
$this->_params['table'],
(empty($folderPath) && $this->_db->dbsyntax == 'oci8') ? ' IS NULL' : ' LIKE ' . $this->_db->quote($this->_getNativePath($folderPath, '%')));
$this->log($sql, PEAR_LOG_DEBUG);
$deleteContents = $this->_db->query($sql);
if (is_a($deleteContents, 'PEAR_Error')) {
$this->log($deleteContents, PEAR_LOG_ERR);
return PEAR::raiseError(sprintf(_("Unable to delete VFS recursively: %s."), $deleteContents->getMessage()));
}
/* Now delete everything inside the folder. */
$sql = sprintf('DELETE FROM %s WHERE vfs_path %s',
$this->_params['table'],
(empty($path) && $this->_db->dbsyntax == 'oci8') ? ' IS NULL' : ' = ' . $this->_db->quote($folderPath));
$this->log($sql, PEAR_LOG_DEBUG);
$delete = $this->_db->query($sql);
if (is_a($delete, 'PEAR_Error')) {
$this->log($delete, PEAR_LOG_ERR);
return PEAR::raiseError(sprintf(_("Unable to delete VFS directory: %s."), $delete->getMessage()));
}
/* All ok now delete the actual folder */
$sql = sprintf('DELETE FROM %s WHERE vfs_path %s AND vfs_name = %s',
$this->_params['table'],
(empty($path) && $this->_db->dbsyntax == 'oci8') ? ' IS NULL' : ' = ' . $this->_db->quote($path),
$this->_db->quote($name));
$this->log($sql, PEAR_LOG_DEBUG);
$delete = $this->_db->query($sql);
if (is_a($delete, 'PEAR_Error')) {
$this->log($delete, PEAR_LOG_ERR);
return PEAR::raiseError(sprintf(_("Unable to delete VFS directory: %s."), $delete->getMessage()));
}
return $delete;
}
/**
* Return a list of the contents of a folder.
*
* @access public
*
* @param string $path The directory path.
* @param optional mixed $filter String/hash of items to filter based
* on filename.
* @param optional boolean $dotfiles Show dotfiles?
* @param optional boolean $dironly Show directories only?
*
* @return mixed File list on success or false on failure.
*/
function _listFolder($path, $filter = null, $dotfiles = true,
$dironly = false)
{
$conn = $this->_connect();
if (is_a($conn, 'PEAR_Error')) {
return $conn;
}
$files = array();
$fileList = array();
// Fix for Oracle not differentiating between '' and NULL.
if (empty($path) && $this->_db->dbsyntax == 'oci8') {
$where = 'vfs_path IS NULL';
} else {
$where = 'vfs_path = ' . $this->_db->quote($path);
}
$sql = sprintf('SELECT vfs_name, vfs_type, vfs_data, vfs_modified, vfs_owner FROM %s WHERE %s',
$this->_params['table'],
$where);
$this->log($sql, PEAR_LOG_DEBUG);
$fileList = $this->_db->getAll($sql);
if (is_a($fileList, 'PEAR_Error')) {
return $fileList;
}
foreach ($fileList as $line) {
// Filter out dotfiles if they aren't wanted.
if (!$dotfiles && substr($line[0], 0, 1) == '.') {
continue;
}
$file['name'] = $line[0];
if ($line[1] == VFS_FILE) {
$name = explode('.', $line[0]);
if (count($name) == 1) {
$file['type'] = '**none';
} else {
$file['type'] = VFS::strtolower($name[count($name) - 1]);
}
$file['size'] = VFS::strlen($line[2]);
} elseif ($line[1] == VFS_FOLDER) {
$file['type'] = '**dir';
$file['size'] = -1;
}
$file['date'] = $line[3];
$file['owner'] = $line[4];
$file['perms'] = '-';
$file['group'] = '-';
// filtering
if ($this->_filterMatch($filter, $file['name'])) {
unset($file);
continue;
}
if ($dironly && $file['type'] !== '**dir') {
unset($file);
continue;
}
$files[$file['name']] = $file;
unset($file);
}
return $files;
}
/**
* Returns a sorted list of folders in specified directory.
*
* @access public
*
* @param optional string $path The path of the directory to get
* the directory list for.
* @param optional mixed $filter String/hash of items to filter
* based on folderlist.
* @param optional boolean $dotfolders Include dotfolders?
*
* @return mixed Folder list on success or PEAR_Error object on failure.
*/
function listFolders($path = '', $filter = array(), $dotfolders = true)
{
$conn = $this->_connect();
if (is_a($conn, 'PEAR_Error')) {
return $conn;
}
$sql = sprintf('SELECT vfs_name, vfs_path FROM %s WHERE vfs_path = %s AND vfs_type = %s',
$this->_params['table'],
$this->_db->quote($path),
VFS_FOLDER);
$this->log($sql, PEAR_LOG_DEBUG);
$folderList = $this->_db->getAll($sql);
if (is_a($folderList, 'PEAR_Error')) {
return $folderList;
}
$folders = array();
foreach ($folderList as $line) {
$folder['val'] = $this->_getNativePath($line[1], $line[0]);
$folder['abbrev'] = '';
$folder['label'] = '';
$count = substr_count($folder['val'], '/');
$x = 0;
while ($x < $count) {
$folder['abbrev'] .= ' ';
$folder['label'] .= ' ';
$x++;
}
$folder['abbrev'] .= $line[0];
$folder['label'] .= $line[0];
$strlen = VFS::strlen($folder['label']);
if ($strlen > 26) {
$folder['abbrev'] = substr($folder['label'], 0, ($count * 4));
$length = (29 - ($count * 4)) / 2;
$folder['abbrev'] .= substr($folder['label'], ($count * 4), $length);
$folder['abbrev'] .= '...';
$folder['abbrev'] .= substr($folder['label'], -1 * $length, $length);
}
$found = false;
foreach ($filter as $fltr) {
if ($folder['val'] == $fltr) {
$found = true;
}
}
if (!$found) {
$folders[$folder['val']] = $folder;
}
}
ksort($folders);
return $folders;
}
/**
* Renames all child paths.
*
* @access private
*
* @param string $path The path of the folder to rename.
* @param string $name The foldername to use.
*
* @return mixed True on success or a PEAR_Error object on failure.
*/
function _recursiveRename($oldpath, $oldname, $newpath, $newname)
{
$sql = sprintf('SELECT vfs_name FROM %s WHERE vfs_type = %s AND vfs_path = %s',
$this->_params['table'],
$this->_db->quote(VFS_FOLDER),
$this->_db->quote($this->_getNativePath($oldpath, $oldname)));
$this->log($sql, PEAR_LOG_DEBUG);
$folderList = $this->_db->getCol($sql);
foreach ($folderList as $folder) {
$this->_recursiveRename($this->_getNativePath($oldpath, $oldname), $folder, $this->_getNativePath($newpath, $newname), $folder);
}
$sql = sprintf('UPDATE %s SET vfs_path = %s WHERE vfs_path = %s',
$this->_params['table'],
$this->_db->quote($this->_getNativePath($newpath, $newname)),
$this->_db->quote($this->_getNativePath($oldpath, $oldname)));
$this->log($sql, PEAR_LOG_DEBUG);
$result = $this->_db->query($sql);
return $result;
}
/**
* Return a full filename on the native filesystem, from a VFS
* path and name.
*
* @access private
*
* @param string $path The VFS file path.
* @param string $name The VFS filename.
*
* @return string The full native filename.
*/
function _getNativePath($path, $name)
{
if (empty($path)) {
return $name;
}
if (!empty($path)) {
if (isset($this->_params['home']) &&
preg_match('|^~/?(.*)$|', $path, $matches)) {
$path = $this->_params['home'] . '/' . $matches[1];
}
}
return $path . '/' . $name;
}
/**
* Attempts to open a persistent connection to the SQL server.
*
* @access private
*
* @return mixed True on success or a PEAR_Error object on failure.
*/
function _connect()
{
if ($this->_db === false) {
if (!is_array($this->_params)) {
return PEAR::raiseError(_("No configuration information specified for SQL VFS."));
}
$required = array('phptype', 'hostspec', 'username', 'password', 'database');
foreach ($required as $val) {
if (!isset($this->_params[$val])) {
return PEAR::raiseError(sprintf(_("Required '%s' not specified in VFS configuration."), $val));
}
}
if (!isset($this->_params['table'])) {
$this->_params['table'] = 'horde_vfs';
}
/* Connect to the SQL server using the supplied parameters. */
require_once 'DB.php';
$this->_db = &DB::connect($this->_params,
array('persistent' => !empty($this->_params['persistent'])));
if (is_a($this->_db, 'PEAR_Error')) {
$this->log($this->_db, PEAR_LOG_ERR);
$error = $this->_db;
$this->_db = false;
return $error;
}
$this->_db->setOption('portability', DB_PORTABILITY_LOWERCASE | DB_PORTABILITY_ERRORS);
}
return true;
}
/**
* Disconnect from the SQL server and clean up the connection.
*
* @access private
*/
function _disconnect()
{
if ($this->_db) {
$this->_db->disconnect();
$this->_db = false;
}
}
/**
* TODO
*
* @access private
*
* @param string $table TODO
* @param string $field TODO
* @param string $criteria TODO
*
* @return mixed TODO
*/
function _readBlob($table, $field, $criteria)
{
if (!count($criteria)) {
return PEAR::raiseError('You must specify the fetch criteria');
}
$where = '';
switch ($this->_db->dbsyntax) {
case 'oci8':
foreach ($criteria as $key => $value) {
if (!empty($where)) {
$where .= ' AND ';
}
if (empty($value)) {
$where .= $key . ' IS NULL';
} else {
$where .= $key . ' = ' . $this->_db->quote($value);
}
}
$statement = OCIParse($this->_db->connection,
sprintf('SELECT %s FROM %s WHERE %s',
$field, $table, $where));
OCIExecute($statement);
if (OCIFetchInto($statement, $lob)) {
$result = $lob[0]->load();
if (is_null($result)) {
$result = PEAR::raiseError('Unable to load SQL data.');
}
} else {
$result = PEAR::raiseError('Unable to load SQL data.');
}
OCIFreeStatement($statement);
break;
default:
foreach ($criteria as $key => $value) {
if (!empty($where)) {
$where .= ' AND ';
}
$where .= $key . ' = ' . $this->_db->quote($value);
}
$sql = sprintf('SELECT %s FROM %s WHERE %s',
$field, $table, $where);
$this->log($sql, PEAR_LOG_DEBUG);
$result = $this->_db->getOne($sql);
if (is_null($result)) {
$result = PEAR::raiseError('Unable to load SQL data.');
} else {
switch ($this->_db->dbsyntax) {
case 'pgsql':
$result = pack('H' . strlen($result), $result);
break;
}
}
}
return $result;
}
/**
* TODO
*
* @access private
*
* @param string $table TODO
* @param string $field TODO
* @param string $data TODO
* @param string $attributes TODO
*
* @return mixed TODO
*/
function _insertBlob($table, $field, $data, $attributes)
{
$fields = array();
$values = array();
switch ($this->_db->dbsyntax) {
case 'oci8':
foreach ($attributes as $key => $value) {
$fields[] = $key;
$values[] = $this->_db->quote($value);
}
$statement = OCIParse($this->_db->connection,
sprintf('INSERT INTO %s (%s, %s)' .
' VALUES (%s, EMPTY_BLOB()) RETURNING %s INTO :blob',
$table,
implode(', ', $fields),
$field,
implode(', ', $values),
$field));
$lob = OCINewDescriptor($this->_db->connection);
OCIBindByName($statement, ':blob', $lob, -1, SQLT_BLOB);
OCIExecute($statement, OCI_DEFAULT);
$lob->save($data);
$result = OCICommit($this->_db->connection);
$lob->free();
OCIFreeStatement($statement);
return $result ? true : PEAR::raiseError('Unknown Error');
default:
foreach ($attributes as $key => $value) {
$fields[] = $key;
$values[] = $value;
}
$query = sprintf('INSERT INTO %s (%s, %s) VALUES (%s)',
$table,
implode(', ', $fields),
$field,
'?' . str_repeat(', ?', count($values)));
break;
}
switch ($this->_db->dbsyntax) {
case 'mssql':
case 'pgsql':
$values[] = bin2hex($data);
break;
default:
$values[] = $data;
}
/* Execute the query. */
$this->log($query, PEAR_LOG_DEBUG);
$stmt = $this->_db->prepare($query);
return $this->_db->execute($stmt, $values);
}
/**
* TODO
*
* @access private
*
* @param string $table TODO
* @param string $field TODO
* @param string $data TODO
* @param string $where TODO
* @param array $alsoupdate TODO
*
* @return mixed TODO
*/
function _updateBlob($table, $field, $data, $where, $alsoupdate)
{
$fields = array();
$values = array();
switch ($this->_db->dbsyntax) {
case 'oci8':
$wherestring = '';
foreach ($where as $key => $value) {
if (!empty($wherestring)) {
$wherestring .= ' AND ';
}
$wherestring .= $key . ' = ' . $this->_db->quote($value);
}
$statement = OCIParse($this->_db->connection,
sprintf('SELECT %s FROM %s FOR UPDATE WHERE %s',
$field,
$table,
$wherestring));
OCIExecute($statement, OCI_DEFAULT);
OCIFetchInto($statement, $lob);
$lob[0]->save($data);
$result = OCICommit($this->_db->connection);
$lob[0]->free();
OCIFreeStatement($statement);
return $result ? true : PEAR::raiseError('Unknown Error');
default:
$updatestring = '';
$values = array();
foreach ($alsoupdate as $key => $value) {
$updatestring .= $key . ' = ?, ';
$values[] = $value;
}
$updatestring .= $field . ' = ?';
switch ($this->_db->dbsyntax) {
case 'mssql':
case 'pgsql':
$values[] = bin2hex($data);
break;
default:
$values[] = $data;
}
$wherestring = '';
foreach ($where as $key => $value) {
if (!empty($wherestring)) {
$wherestring .= ' AND ';
}
$wherestring .= $key . ' = ?';
$values[] = $value;
}
$query = sprintf('UPDATE %s SET %s WHERE %s',
$table,
$updatestring,
$wherestring);
break;
}
/* Execute the query. */
$this->log($query, PEAR_LOG_DEBUG);
$stmt = $this->_db->prepare($query);
return $this->_db->execute($stmt, $values);
}
}
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